You approach a school bus that has stopped for passengers. What must you do?

According to Mississippi's Nathan's Law, you must stop at least 10 feet from a school bus that has stopped with its red lights flashing or its stop sign extended, no matter which direction you are traveling in. You must remain stopped until either a) the children have crossed the roadway and the bus has resumed its motion or b) the school bus's red lights no longer flash and its stop sign is retracted. The law was named for Nathan Key, who was struck and killed at the age of five after exiting a school bus. [MS Code § 63-3-615]